Some lines were financed by the state of Luxembourg by means of granting exploration rights of iron ore to the railway companies.
In the case of the Luxembourg–Remich line, for example, 3.3 ha of iron ore fields was granted per km built.
Luxemburger Sekundärbahnen (LSB) / Chemins de fer Secondaires Luxembourgeois (CSL), 1880–1934 Kantonalbahngesellschaft / Chemins de Fer Cantonaux (CC), 1880–1923 Vizinalbahnen / Chemins de Fer Vicinaux (CV), 1899–1934 Prinz Heinrich Eisenbahn / Chemins de fer Prince Henri (PH) 1868–1877 – 1940–1948 Numerous industrial railways were constructed at Differdange, Dudelange, Esch-sur-Alzette, Petange, Rumelange, Wasserbillig and others.
[1] Hundreds of kilometers of mining railways were created, above and underground, for companies like ARBED (now ArcelorMittal), predominantly at the gauge of 700 mm (2 ft 3+9⁄16 in), also electrified.
[2] Several dozens[3] of Decauville railways served local communities, forests and, for example, the Saint-Maurice and Saint Maur Abbey near Clervaux.